Barri

*190 *433 Michael E. Barri (Barri), Tristar Medical Group (Tristar), and Coalition for Sensible Workers' Compensation Reform (CSWCR) petitioned this court pursuant to Labor Code section 5955 (all further statutory *434 references are to the Labor Code, unless otherwise indicated). They seek a peremptory or alternative writ of mandate, prohibition, or other appropriate relief directing the Workers' Compensation Appeals Board (WCAB) 1 to perform its duties and adjudicate Tristar's lien claims and not enforce certain unconstitutional provisions contained in newly enacted anti-fraud legislation. (§§ 4615 & 139.21.)

In 2016, the Legislature created two new statutes to address a financial crisis plaguing the workers' compensation system, however, the remedy came at a significant cost to all participating medical providers and related entities. Specifically, the new anti-fraud scheme cast a very broad net to halt all proceedings relating to any workers' compensation liens filed by criminally charged medical providers (charged providers), as well as any entities "controlled" by the charged provider (noncharged entities). The Legislature created this new scheme because existing laws…